/* ==========================================================================
   TEKMAKS TEKNIK — HEADER & NAVIGATION
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-topbar {
  background: var(--color-navy-dark);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: var(--space-2) 0;
  font-size: var(--font-size-xs);
  color: var(--color-silver-dark);
}

.topbar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.topbar-badge .status-dot {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-success);
}

.topbar-contacts {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.topbar-contact-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  color: var(--color-silver);
}

.topbar-contact-item:hover {
  color: var(--color-accent);
}

.header-main {
  padding: var(--space-3) 0;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
  max-height: 76px;
}

.brand-logo .site-logo-img,
.brand-logo img {
  height: 68px;
  max-height: 74px;
  width: auto;
  max-width: 320px;
  object-fit: contain;
  display: block;
  border-radius: 6px;
}

.brand-logo:hover img {
  transform: scale(1.02);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.brand-tagline {
  font-size: 0.6875rem;
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-silver);
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-accent-hover);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
}

.header-cta-group {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header-phone-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-navy-light) 100%);
  color: var(--color-white);
  padding: 0.625rem 1.125rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: var(--font-size-sm);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 2px 8px rgba(0, 141, 218, 0.25);
  transition: all var(--transition-normal);
}

.header-phone-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(0, 141, 218, 0.4);
}

.menu-toggle-btn {
  display: none;
  padding: var(--space-2);
  color: var(--color-white);
  font-size: 1.5rem;
}

/* Mobile Navigation Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 380px;
  height: 100vh; height: 100dvh; padding-top: calc(var(--space-6) + env(safe-area-inset-top, 0px)); padding-bottom: calc(var(--space-6) + env(safe-area-inset-bottom, 0px)); -webkit-overflow-scrolling: touch;
  background: var(--color-navy-dark);
  z-index: 2000;
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  transition: right var(--transition-normal) ease-in-out;
  border-left: 1px solid var(--color-border);
  overflow-y: auto;
}

.mobile-nav-drawer.open {
  right: 0;
}

.mobile-drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-4);
}

.mobile-drawer-close {
  color: var(--color-silver);
  font-size: 1.75rem;
  padding: var(--space-1);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.mobile-nav-link {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-silver);
  padding: var(--space-2) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  color: var(--color-accent);
}

.mobile-drawer-ctas {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh; height: 100dvh; padding-top: calc(var(--space-6) + env(safe-area-inset-top, 0px)); padding-bottom: calc(var(--space-6) + env(safe-area-inset-bottom, 0px)); -webkit-overflow-scrolling: touch;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1999;
  display: none;
}

.drawer-backdrop.active {
  display: block;
}